Biotyping some Campylobacter jejuni
Isolates and their
sensitivity to common antibiotics
Research submitted by :
Ghada
Abdul-Razzaq M. Al-Taee & Amera
Mahmood M.Al-Rawe.
Department of Biology / College of Sciences / Mosul
University
ABSTRACT
The study involved
the biotyping of 9 isolates of Campylobacter jejuni (C.jejuni)
isolated from 152 fecal samples from children with sever diarrhea . These
isolates were identified depending on morphological , and cultural
characteristics and biochemical tests .The study also aimed at checking the
sensitivity and resistance of this bacterium to some common antibiotics.
Biotyping was done depending on three biochemical tests , Hydrolysis of
hippurate , Hydrolysis of DNA and ability of growth on Charcaol Yeast Extract
(CYE).This biotyping system includes eight biotypes. The results showed that
all isolates belonged to two biotypes , the third and seventh .The third was
the dominant comparising 77.78 % while the seventh contained only 22.22 % of
the isolates . The study also showed that All isolates were sensetive to
Neomycin , Tetracycin , Rifampicin but fully resistante to Co-Trimoxazole and
Ampicillin. However, the isolates avariable sensetivity or resistance to
Chloramphenicole, Gentamycine, Erythromycine and Ciprofloxacin .
